Truck side frame for cars.



W. D. FORSYTH.

TRUCK SIDE FRAME FOR CARS. APPLICATION FILED JULY.16, 1999.

996,629.] Patented July4, 1911.

WITN ESS'ES 2 SHEETS-SHEET i.

,n s'rnrns ASSIGNOR, BY MESNE ASSIGNMENTS 'JJO A. M. NEEPER, FPITTSBURG, PENNSYLVANIA.

TRUCK SIDE FRAME FOR CABS.

Specification of Letters Patent.

Patented July 4, 1911.

Application filed July 16 41909. Serial No. 507,933.

To; all whom 'it may concern:

Be it known that I, WILLIAM D. FoRsY'rH, residing at 310 Madison avenue,in the city of Youngstown, in the county of Mahoning 5' and State ofOhio, have invented a new and useful Improvement in Truck Side Framesfor Cars; and I do hereby declare the fol-, lowing to be a full, clear,a nd exact-description thereof.

My invention consists in 1a metal bar of.

peculiar cross-section properly machined.

and expanded, together with proper bracing members, bearings andbo1ts,-'all for-min a truck side-frame; and the object ofmy 1mprovementsis to provide a truck side-frame which shall have ample strength andminimum weight at the lowest practical cost In the accompanyingdrawings, which illustrate my invention and the apparatus for and methodof making thesame, like figures of reference refer to like partsthroughout. a

Figure 1 is a cross section of the rolled bar or shape from which myimproved truck side frame is made and is a section of Fig. 2 on lineA.-A. Fig. 2 at side elevation of said rolled bar or shape. Fig.3, isaside bar-or shape with elevation of said rolled 1 certain portions of"the. same punched from .30'its web between the flanges. Fig.4 is avertical cross section on 'the line B'B of Fig. 6., Fig. 5 is a sideelevation of Fig. 3 expanded in shape of myimproved truck side-frame.Fig.6 is a side elevation of my improved truck side frame Withafljournal box bolted to it at each end with angle bar reinforcementsapplied to, it

at its largest opening. Fig. 7 is a longitudi- 40 nal cross section ofFig. 6 on line CC. Fig. 8 isaa cross section of a variation of a rolledshape used to make a modification of my improved truck side frameomitting thetie rod therefrom as shown'in Figs. 4

to 6, both inclusive, and is a crosssection of '9. Fig. 9 is asideelevation of the rolled bar shown in cross section in Fig.8. Fig. 10 isaside elevation of Fig.. 9with certain portions'of the web cut away. Fig.,11 is a section ofFig. 13 on line EE. Fig..12 is a section of the endof Fig. 13 on line DI-D. Fig. 13 is F,ig. 10 expanded to the shape of myimproved truck side ,frame at its median line and at both-endstoconnected journal boxes. Fig. 14 is a f-forming die, the

side elevation of my improved truck side frame without the tie rod shownin Figs. '5 and 6. Fig. 15 is a longitudinal View of Fig. 14 on line FF.

- A suitable billet, preferably of steel, is rolled to form a ribbed orflanged bar a Figs. 1 and 2 or d Figs. 8 and 9. Taking the constructionshown in Figs. v1 to 7 inelusive, the bar shown has av web, upperflanges 1, lower flanges? and intermediate flanges these partswill'depend upon the type, size and duty'of the car intolwhose'construction the truck frames enter. -'Ihe.bar is then cutto properlength, and the web is punched out on the Fig.

formed in the and 2, andslots 'the flanges 2 and 3. When the bar a .has

properlines as indicated in irregular aperture, 6, is web between theflanges. 1 c and c are formed between been thus slotted, it is placed ina proper upper flanges 1 are separated from the j intermediate flanges'2, at their .middle portions, the ends of theseflangesretaining theirprevious distance, being connected by the we At the same time theequally inclined members 4. are produced, stilfened by the web-members5. .The lower flanges 3 now constitute the tie upper and middle flangesand between themiddle and lower.

rod a. The result isa one-piece truck sideframe having all partsintegral with each other, having. continuous tension and compressionmembers, and having the metal properly distributed to give the greateststrength for the weight.

In Figs. 6 and 7 are shown the braces 6 attached to the upper and lowerwebs 5 and 5, at the points where they are bent, by means of rivets 6,or they may be electrically welded into place. These braces hold theside-frame in proper form. The holes 7 I through the flanges 4 and webs5-5 and -holes 9 through the tie-rod a may be drilled for the bolts 8,to hold the journal boxes 10 in position. The diagonals 4 will transmitthe upward thrust of the journal boxes to the bolster, the tie rods a.serving to prevent the lower faces of the boxes from swinging outward.As the flanges 1, 2 and 3 are continuous, their strength is greater'thann a similar construction formed by riveting structural members together.r A different forin. of. my improved one-' 2. The sizes and proportionsof' piece truck side-frame isshown in. Fig. 14, 1

formed from the bar d in Fig; 9 This bar rivets 18 and 19, hold thetruck-side-frame in proper form and also furnish means for connecting tothe truck bolster. In this construction as in the one previouslydescribed, the strong diagonal members extend from the upper and lowerside of the bolster to the journal boxes. In both cases the sideframe isdeep and extremely stifi, and in both the maximum amount of metal isplaced in the diagonals which transmit the stress from the bolster tothe boxes.- The lighter members a", 6 and 16 are in tension' and serveto hold the frame in forms The heavy members take the load directly. Thehorizontal members, between the upright braces, are entire and integralwith the dia onals, no portion being cut and then patche As none of themetal is stretched, there are no broken fibers.

Havingnow explained my construction, what I claim as my invention anddesire to secure by Letters Patent is 1. A car-truck sideframecomprising webs and three continuous lateral flanges on each side of thewebs connected by the same at intervals, all the flanges being parallelto each other at their middle portions and at their ends, the middle ofthe upper flanges being separated from the intermediate flanges to admita car bolster, the ends of the upper and intermediate flanges beingconnected by Webs, the middle of the lower flanges being connected tothe intermediate flanges by a web and the ends of said flanges beingseparated to admit car-axle boxes.

2. A car truck side frame formed from a bar having a slitted web andthree longitudinal flanges on each side of the web, the flanges beingbent at proper points to form upper, lower and intermediateframe-members parallel to each other at their middle ortions and ends,the ends of the upper and lntermediate bars and the middle portions ofthe intermediate and lower bars being reflanges being bent at properpoints to form upper, lower and intermediate frame-members parallel toeach other at their middle portions and ends, the ends'of the upper andintermediate bars and the middle portions of the intermediate and lowerbars being respectively integral with each other, portions of the upperand intermediate bars being inclined to admit a car-bolster between thebars, and upright braces connecting the upper and lower flanges at thepoints where they are bent.

4. A car-truck side-frame formed from a rolled-steel bar and comprisingwebs and continuous lateral flanges on each side of the webs connectingthe same at intervals, the flanges being bent so that at their middleportions and at their ends they are in parallel planes, the flangesbeing separated at their middle portions to admit a car-bolster, andconnected at their ends by webs, the ends of the flanges being formed tobe secured to car-axle boxes, and upright braces connecting the flangesat the ends of the middle parallel portions.

5. A car-truck side-frame of rolled steel having integrally connectedcontinuous upper, intermediate and lower flanges, said intermediate andlower flanges being parallel and connected to each other at their middleportions and parallel to and separated from each other at their ends,said upper flange being parallel to and separated-from the intermediateflange at their middle portions and parallel and connected to the sameat their ends, and vertical braces connected at their ends to said upperand intermediate flanges at .the ends oftheirmiddle parallel portions toinclose an opening for a car bol ster.

In testimony whereof, I, the said WILLIAM D. FoRsY'rH, havehereunto setmy hand, this 13th day of July, 1909.

WILLIAM D. FORSYTH.

Witnesses:

A. M. NEEPER, M. E. 'THOMAS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

